Gem install error related to missing library - ruby

I installed Ruby v2.1.4 from source. I installed all necessary libaries using:
yum install gcc g++ make automake autoconf curl-devel openssl-devel zlib-devel httpd-devel apr-devel apr-util-devel sqlite-devel
All succeeded.
Now when I want to install a gem with:
gem install bundler-1.7.4.gem
I get:
ERROR: Loading command: install (LoadError)
cannot load such file -- zlib
ERROR: While executing gem ... (NoMethodError)
undefined method `invoke_with_build_args' for nil:NilClass
I am sure that zlib is installed:
locate zlib
results in a long list of
/lib/modules/2.6.32-431.el6.x86_64/kernel/crypto/zlib.ko
/lib/modules/2.6.32-431.el6.x86_64/kernel/lib/zlib_deflate
/lib/modules/2.6.32-431.el6.x86_64/kernel/lib/zlib_deflate/zlib_deflate.ko
/lib64/rsyslog/lmzlibw.so
/usr/include/zlib.h
/usr/lib64/pkgconfig/zlib.pc
/usr/lib64/python2.6/encodings/zlib_codec.py
/usr/lib64/python2.6/encodings/zlib_codec.pyc
/usr/lib64/python2.6/encodings/zlib_codec.pyo
/usr/lib64/python2.6/lib-dynload/zlibmodule.so
/usr/local/share/doc/ruby/capi/html/db/d74/zlib_8c.html
/usr/local/share/doc/ruby/capi/html/db/d74/zlib_8c_source.html
/usr/local/share/ri/2.1.0/system/Zlib/zlib_version-c.ri
/usr/share/doc/zlib-1.2.3
/usr/share/doc/zlib-devel-1.2.3
/usr/share/doc/zlib-1.2.3/ChangeLog
/usr/share/doc/zlib-1.2.3/FAQ
/usr/share/doc/zlib-1.2.3/README
/usr/share/doc/zlib-devel-1.2.3/README
/usr/share/doc/zlib-devel-1.2.3/algorithm.txt
/usr/share/doc/zlib-devel-1.2.3/example.c
/usr/share/doc/zlib-devel-1.2.3/minigzip.c
/usr/share/man/man3/zlib.3.gz
/usr/src/kernels/2.6.32-431.el6.x86_64/include/config/zlib
/usr/src/kernels/2.6.32-431.el6.x86_64/include/config/crypto/zlib.h
/usr/src/kernels/2.6.32-431.el6.x86_64/include/config/jffs2/zlib.h
/usr/src/kernels/2.6.32-431.el6.x86_64/include/config/ubifs/fs/zlib.h
/usr/src/kernels/2.6.32-431.el6.x86_64/include/config/zlib/deflate.h
/usr/src/kernels/2.6.32-431.el6.x86_64/include/config/zlib/inflate.h
/usr/src/kernels/2.6.32-431.el6.x86_64/include/linux/zlib.h
/usr/src/kernels/2.6.32-431.el6.x86_64/lib/zlib_deflate
/usr/src/kernels/2.6.32-431.el6.x86_64/lib/zlib_inflate
/usr/src/kernels/2.6.32-431.el6.x86_64/lib/zlib_deflate/Makefile
/usr/src/kernels/2.6.32-431.el6.x86_64/lib/zlib_inflate/Makefile
Did I miss something?

I have found the solution at this blog. I am unable to use rvm because server have no internet connection even through proxy.
While installing ruby from sources doing the following solved the issue:
Remove the installed Ruby with make clean
Install libssl-dev with your OS's package manager of choice. E.g. apt-get install libssl-dev
Install zlib1g-dev with your OS's package manager of choice. E.g. apt-get install zlib1g-dev
Config make file to include openssl by go to ext/openssl and run ruby extconf.rb
Config make file to include zlib by go to ext/zlib and run ruby extconf.rb
Go back to ruby source code directory run make && make install
You should be able to successfully run gem install bundler

Related

Trying to install libsndfile on Ubuntu 16

I've tried running
sudo apt-get install libsndfile
> E: Unable to locate package libsndfile
So then I try
sudo apt-get install libsndfile1
It installs, but where, how?
find /usr/ -name libsndfile*
> /usr/lib/x86_64-linux-gnu/libsndfile.so.1
> /usr/lib/x86_64-linux-gnu/libsndfile.so.1.0.25
At the end of the day my goal is to get the lib to work for ruby, with either:
gem install sndfile
gem install ruby-audio
When I try installing ruby-audio, I get:
extconf.rb:21:in `<main>': Can't find libsndfile (http://www.mega-nerd.com/libsndfile/) (RuntimeError)
So for some reason the library doesn't install properly.
When you want to compile something against a library you'll need not only the library itself, which is usually one or more .so type files, but the header files that describe how the library works. These are often omitted unless you install the -dev version of the package:
apt-get install libsndfile-dev
This should give the Ruby extconf.rb enough information to compile and link against that library.

Failed to build gem native extension

I want to install in my Fedora 12 based planet lab nodes one OMF RC:
It requres ruby 1.9.3. So, I installed git, then ruby-devel then rvm. With rvm i installed:
rvm install 1.9.3
After all this when i want to install:
gem install omf_rc --pre --no-ri --no-rdoc
It gives me the following error:
Building native extensions. This could take a while...
ERROR: Error installing omf_rc:
ERROR: Failed to build gem native extension.
/usr/local/rvm/rubies/ruby-1.9.3-p194/bin/ruby extconf.rb
checking for libxml/parser.h... * extconf.rb failed *
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers
Please let me know how to solve this. Thanks
seems you need to install libxml, try:
sudo yum install -y gcc ruby-devel libxml2 libxml2-devel libxslt libxslt-devel
Also it needs the following installation:
sudo yum install -y git make gcc-c++
and
sudo yum groupinstall development-tools development-libs

How to install Nokogiri Ruby gem with mkmf.log saying libiconv not found?

I'm installing the Ruby Nokogiri gem and finding the error below.
How to diagnose this and solve it?
# gem install nokogiri
Building native extensions. This could take a while...
ERROR: Error installing nokogiri:
ERROR: Failed to build gem native extension.
...
/opt/ruby/1.9.3-p194/bin/ruby extconf.rb
checking for libxml/parser.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
...
/opt/ruby/1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:381:in `try_do':
The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
from /opt/ruby/1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:506:in `try_cpp'
...
To diagnose and solve, here's what worked for me.
To find out what failed, go to your ruby gems directory.
For example:
$ cd <MY RUBY DIRECTORY>/lib/ruby/gems/2.0.0/gems
If you don't know your gem directory, try this:
$ echo $GEM_HOME
/opt/gems/2.0.0
$ cd /opt/gems/2.0.0/gems
What version of nokogiri am I installing?
$ ls -ladg nokogiri-*
nokogiri-1.5.5
Go to the installer directory:
$ cd nokogiri-1.5.5/ext/nokogiri
Try installing manually:
$ ruby extconf.rb
Result:
checking for libxml/parser.h... *** extconf.rb failed ***
...
I'm using Ubuntu so I search for any similar packages:
$ aptitude search libxml
Results:
p libxml2 - GNOME XML library
p libxml2-dev - Development files for the GNOME XML library
...
I believe that libxml2 will work fine.
$ apt-get install libxml2
Ruby native gems often need the *-dev packages for headers so install them:
$ apt-get install libxml2-dev
Now do I have the parser file?
$ find / | grep libxml/parser.h
Yes, the result shows the parser:
/usr/include/libxml2/libxml/parser.h
Now try installing again, this time providing the libxml2 path:
$ gem install nokogiri -- --with-xml2-dir=/usr/include/libxml2
It still fails, so read the mkmf error log:
$ more mkmf.log
The error log shows what failed and has these lines that look promising:
package configuration for libxslt is not found
Is there a package for it?
$ aptitude search libxslt
Results:
v libxslt-dev
i libxslt-ruby
...
Install the dev package:
$ apt-get install libxslt-dev
Now try installing again, and also put xslt on the path:
$ gem install nokogiri -- \
--with-xml2-dir=/usr/include/libxml2 \
--with-xslt-dir=/usr/include/libxslt
Success!
Installing Nokogiri Website
'Installing Nokogiri' is a website dedicated to installing Nokogiri on the major platforms - Here is an excerpt about Installing Nokogiri on Ubuntu:
Because Nokogiri needs to be compiled and dynamically linked against
both libxml2 and libxslt, it has gained a reputation for being
complicated to install.
As of Nokogiri 1.6, libxml2 and libxslt source code is bundled with
Nokogiri, and compiled at gem-install-time. The instructions in this
document should work for all versions 1.6.4 and later.
Ubuntu / Debian
Installation should Just Work™ on Ubuntu and Debian using Nokogiri’s
vendored libxml2 and libxslt:
gem install nokogiri
[...]
Using Your System Libraries
If, instead of Nokogiri’s vendored libraries, you’d like to use your
system’s libxml2, libxslt and related libraries, please first
understand that you may be asking Nokogiri to work with an unsupported
version of libxml2.
sudo apt-get install pkg-config
gem install nokogiri -- --use-system-libraries
FYI - I am using Nokogiri 1.6.6.2 and it didn't 'just work'. I got it going with the --use-system-libraries.
Mac OS X
The website's advice also covers OS X - this worked for me:
gem update --system
xcode-select --install
gem install nokogiri
Conclusion
If you have a Nokogiri problem on any platform you should check out the website.
On CentOS here is what I needed to do:
gem update --system
yum install libxml2-devel libxslt-devel ruby-devel
gem install nokogiri -- --use-system-libraries
Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers.
You are probably missing zlib headers which are required for -lz flag in order to compile the sources correctly. Install on Linux by:
sudo apt-get install libz-dev
For missing libiconv, try installing libiconv-hook-dev package which has header files of libiconv-hook, e.g.
sudo apt-get install libiconv-hook1 libiconv-hook-dev
On OS X, try installing development tools via: xcode-select --install.
If there is still problem, check mkmf.log file for more specific details about your error.
On Ubuntu, try the following dependency fix combo:
sudo apt-get install gcc ruby-dev libxslt-dev libxml2-dev zlib1g-dev
The 'could not create Makefile' error you're seeing could also be because you haven't agreed to the Xcode license (you have to agree to it after each time you update Xcode). Running sudo xcodebuild -license accept should eliminate this error for you and allow you to then run gem install nokogiri successfully.

Installing OpenSSL on Ubuntu for Rails development?

I am running the latest RVM on Ubuntu 10.10 and I managed to get most of the development environment running, except for OpenSSL.
When I try to install the package I get the following error:
$ rvm package install openssl > error
ERROR: Error running 'tar zxf /home/ruby/.rvm/archives/openssl-0.9.8n.tar.gz -C
/home/ruby/.rvm/src', please read /home/ruby/.rvm/log/openssl/extract.log
ERROR: Error running './config -I/home/ruby/.rvm/usr/include -L/home/ruby/.rvm
/usr/lib
--prefix=/home/ruby/.rvm/usr zlib no-asm no-krb5 shared ', please read /home/ruby
/.rvm/log/openssl/configure.log
ERROR: Error running '/usr/bin/make ', please read /home/ruby/.rvm/log/openssl/make.log
ERROR: Error running '/usr/bin/make install', please read /home/ruby/.rvm/log/openssl
/make.install.log
It seems that the original downloaded file is corrupt when I get it via RVM. So, I downloaded and unpacked it to ~/.rvm/src/openssl0.9.8 and the first error is gone (error running tar zxf), but I still get the other ones.
Edit: my Ruby version, if anyone cares, is:
$ ruby -v
ruby 1.9.2p180 (2011-02-18 revision 30909) [x86_64-linux]
Did you run rvm requirements after installing RVM? It shows a list of all needed dependencies, and supplies the recommended "apt-get" command.
/usr/bin/apt-get install build-essential bison openssl libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-0 libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev ncurses-dev
This will install openssl and libssl-dev, both of which are required. I've installed RVM and Ruby many times on Ubuntu and always used RVM's recommended way without a problem.
Do you have libssl installed in Ubuntu?
sudo apt-get install libssl0.9.8
Also install the development package:
sudo apt-get install libssl-dev

has anyone tried installing ruby & rubygems from source on Ubuntu (preferably Ubuntu 9)?

The Ruby on Rails website recommends installing Ruby from source under Linux.
I encountered a number of C library problems building ruby from source on a clean install of Ubuntu 9.
All the instructions I found on the net about installing ruby on Ubuntu have involved using the prepackaged (.deb-based) ruby. Clearly this isn't what the rails people recommend.
When I did a clean source build of ruby I found Rubygems failed to install because the zlib extension didn't work.
Two problems occur:
1) The zlib extension isn't built.
Solution:
i) ensure zlib is uncommented in the Setup file within the extn directory of the ruby source, and
ii) ensure these zlib ubuntu packages are installed:
aptitude install zlib1g
aptitude install zlib1g-dbg
aptitude install zlib1g-dev
aptitude install zlibc
2) After fixing Problem 1 above (and doing a clean rebuild of ruby), zlib still doesn't work because the extension fails to load.
You can see that the module fails to load by running this and getting the output "false":
puts require 'zlib'
I observed this happens to any number of other C extensions in the extn directory, so it appears to be a more general problem with these extensions than just something zlib-specific.
To summarize:
My build of ruby finds the ruby-specific C zlib extension but it fails to load the zlib module.
This behaviour appears to happen to other extensions in /extn.
Is there a way I can find out why a module fails to load? some kind of trace/verbose mode?
Here is what I did to install ruby, gems and rails on Ubuntu 11.04
Install ruby from sources
Install RubyGems from sources
Install zlib:
sudo apt-get install zlib1g-dev
cd your-ruby-sources/ext/zlib
ruby extconf.rb
make
sudo make install
Install readline:
sudo apt-get install libreadline5-dev
cd your-ruby-sources/ext/readline
ruby extconf.rb
make
sudo make install
Install openssl:
sudo apt-get install libssl-dev
cd your-ruby-sources/ext/openssl
ruby extconf.rb
make
sudo make install
I don't see what your problem is. You say that require 'zlib' returns false. But that means that it did work! If there were an error, you would get a LoadError exception.
Did you install libzlib-ruby? Here's my typical Ubuntu initialization before installing Rubygems:
$ apt-get update
$ apt-get dist-upgrade
$ apt-get install build-essential -y
$ apt-get install rsync -y
$ apt-get install ruby ri rdoc irb ri1.8 ruby1.8-dev libzlib-ruby zlib1g libopenssl-ruby -y

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